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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => Project Custom Motobricks => Topic started by: Roland on July 01, 2017, 11:19:20 PM

Title: moving radiator under seat on k100
Post by: Roland on July 01, 2017, 11:19:20 PM
has anyone seen a k100 with the radiator in a different location? I know the jj cobas one but i was thinking either under the seat of in between the frame where the battery sits. thank you

Title: Re: moving radiator under seat on k100
Post by: Martin on July 01, 2017, 11:59:41 PM

Radiators are placed at the front of vehicles, cars, trucks, and motorcycles to get the benefit of maximum air flow. However if you can still maintain cooling there is nothing to stop you placing it wherever you like. It is also possible if you don't have room to use a split radiator and mount half on either side. I can vaguely remember someone installing a custom radiator in the belly pan ( not a Brick).
Regards Martin.
Title: Re: moving radiator under seat on k100
Post by: Laitch on July 02, 2017, 12:03:09 AM
Please post some photos of this project of yours, Roland. It sounds interesting.
Title: Re: moving radiator under seat on k100
Post by: The Dude on July 02, 2017, 01:47:28 AM
There is a depression(pressure drop)in the rear wheel arch that can be used to draw air through a radiator efficiently enough when positioned under the seat.The Britten used this knowledge.Should keep you're arse cool too.
Edit:second thoughts,might make you're arse hot.
Title: Re: moving radiator under seat on k100
Post by: Laitch on July 02, 2017, 02:14:02 AM
The Britten. The two scoops in the front cowl are radiator ducts.

* The Britten, from CycleWorld.png (477.15 kB . 587x361 - viewed 840 times)
Title: Re: moving radiator under seat on k100
Post by: rbm on July 02, 2017, 09:41:34 AM
Moving the radiator to the rear of the bike is possible; I've seen it done to a K75.  It requires a custom radiator and fan combination to ensure it fits in the space at to allow for the routing of hoses from the engine block to the rear of the bike.  It also requires a specialized inline thermostat and housing.  Since the space where the central triangle brace of the frame is completely occupied by the radiator, the ECU, overflow tank, and battery have to move.
Title: Re: moving radiator under seat on k100
Post by: Roland on July 02, 2017, 02:11:55 PM
ecu is not a problem since we put a carb on the bike. I was thinking the battery could go under the seat on under the tank in the front. Where would i get an inline thermostat? where could i get a costom radiator? thank you all for replying

Title: Re: moving radiator under seat on k100
Post by: F14CRAZY on July 04, 2017, 11:24:15 AM
With all the F-ing heat it throws I thought about mounting it on top of the top case
Title: Re: moving radiator under seat on k100
Post by: Laitch on July 04, 2017, 11:33:10 AM
Quote from: Roland on July 02, 2017, 02:11:55 PM
ecu is not a problem since we put a carb on the bike.
How about posting some photos of this critter, Roland?
Title: Re: moving radiator under seat on k100
Post by: Roland on July 04, 2017, 09:23:27 PM
I will start one when i get alittle futher along. We are still in the process kf figuring out how to make a tank. Aluminum or fiberglass. But here is a teaser. This is a pic of the intake we made.
Title: Re: moving radiator under seat on k100
Post by: Laitch on July 04, 2017, 11:21:07 PM
Quote from: Roland on July 04, 2017, 09:23:27 PM
I will start one when i get alittle futher along. We are still in the process kf figuring out how to make a tank. Aluminum or fiberglass. But here is a teaser. This is a pic of the intake we made.
It's ok if you don't have a bike. There's no shame in that. You've got a carburetor, intake manifold and a dream. That's the start of a project. A handlebar would be a good fourth acquisition. Post a photo when you get one.
Title: Re: moving radiator under seat on k100
Post by: Elipten on July 05, 2017, 12:24:37 AM
This is looking interesting!   Got my attention.


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Title: Re: moving radiator under seat on k100
Post by: Roland on July 05, 2017, 12:35:27 AM
The bike...
Title: Re: moving radiator under seat on k100
Post by: Laitch on July 05, 2017, 12:48:40 AM
Quote from: Roland on July 05, 2017, 12:35:27 AM
The bike...
Well so it is! Thanks for the photo, Roland.
Title: Re: moving radiator under seat on k100
Post by: The Dude on July 05, 2017, 03:15:46 PM
You're fuel mixer looks very "steem Punk"I like it!(is that how you spell steem?,it's been a while.)
your fuel tank mod's a bit extreme and the nice shock angled away from direction of its function is a laugh at engineering principles.Ah,who cares?
Finishing can be an anticlimax.I hope it works out....
Title: Re: moving radiator under seat on k100
Post by: Roland on July 05, 2017, 03:26:06 PM
This is the shock done
Title: Re: moving radiator under seat on k100
Post by: The Dude on July 05, 2017, 06:23:06 PM
You may have had good reason to sort this area out better than standard as I had to from my fatigue failures I had on both sides in the shock mount in the bent area in the frame.The thin gusset the shock mounted to had cracked and also the tube on the other side of the bike.I put a plate over it and welded the gussets above the bend both sides of the bike.Some of our roads are shit but the brick can fly over them on the straights.
I figured it was the beer stored in the tail that did it. :riding: